Pleasanton, CA Building Setbacks & Zoning: Lot Coverage Limits (2026)

Pleasanton controls how much of a lot may be built upon through the site, yard, and bulk standards of Chapter 18.84, with district-specific limits set in Table 18.84.010 and a dedicated usable open space requirement in section 18.84.170. Rather than a single citywide coverage percentage, the code assigns lot-coverage and open-space standards by zoning district, so requirements differ between, for example, R-1-6,500 and larger-lot or multi-family districts. The usable open space rules ensure that even as a home expands, a meaningful unobstructed area remains on the lot. As one concrete example, in the R-1-6,500 district certain one-story additions may extend to within 15 feet of the rear property line only if a single, unobstructed usable open space of at least 1,040 square feet is preserved. Because the exact coverage figures and open-space minimums vary by district and because planned developments (PUDs) frequently adopt their own bulk standards, this site does not assert a single fixed lot-coverage percentage for all Pleasanton properties. Homeowners planning an addition, accessory structure, or larger footprint should pull the lot-coverage and usable-open-space standards for their specific zoning district from Table 18.84.010 and section 18.84.170, and confirm with the Pleasanton Planning Division how decks, patios, and accessory buildings count toward coverage.